Evolution of Fish Olfaction
Author Information
Author(s): Hashiguchi Yasuyuki, Furuta Yoshimi, Nishida Mutsumi
Primary Institution: University of Tokyo
Hypothesis
What are the evolutionary patterns of chemosensory receptor gene families in teleost fishes?
Conclusion
Teleost TAARs show frequent gene gains and losses, suggesting they are important for detecting species-specific chemicals, while V1R and V2R families are more conserved.
Supporting Evidence
- Teleost TAARs have a higher proportion of species-specific genes compared to ORs and V2Rs.
- KA/KS ratios of TAARs indicate positive selection in stickleback.
- V1R genes are conserved with no species-specific duplications.
Takeaway
Fish have special genes that help them smell things, and some of these genes change a lot between different fish, while others stay the same.
Methodology
Phylogenetic analysis of chemosensory receptor gene families in five teleost fish species.
Limitations
Functional data of fish odorant/pheromone receptors is lacking.
Participant Demographics
Zebrafish, medaka, stickleback, fugu, and spotted green pufferfish.
Statistical Information
P-Value
p=0.011, p=0.012, p=0.002, p=0.156
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website